Sprint Direct Connect + Airave

Does anyone have any experience with getting Sprint Direct Connect phones to reliably take advantage of the Airave signal booster?

When we have our Airave turned on, the signal bars for CDMA voice definitely improve, but with the Airave on, Direct Connect basically goes out the window.

With Airave on, DC almost immediately shuts off on both of our phones (Kyocera Torques), it takes power-cycling of the phones to get them to re-establish DC, then after several seconds both phones shut off DC again. Since the DC is important to us, we have ended up just shutting the Airave off, which is bad for signal strength, but at least the DC works most of the time with the Airave off. On the data side, our DSL WiFi router handles the data part of it well when we are at home.

I know the Airave is supposed to support Sprint Direct Connect, but is there some trick to "pairing" between the Airave and the phones?

The Airave is less than a month old, it is version 2.5, and it shows all green indicator lights all the time it is on (once it gets booted up), and our DSL connection is good for 2.5 Mbps.